Two points A and B are situated at a distance | vedclass

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Question

Taking distances from the centre of the magnet,

$\frac{{{B_1}}}{{{B_2}}} = {\left( {\frac{{{x_2}}}{{{x_1}}}} \right)^3} = {\left( {\frac{{2x + 1}}{

Vedclass · Accepted Answer

$8 : 1$ approximately

Vedclass · Answer

Taking distances from the centre of the magnet,

$\frac{{{B_1}}}{{{B_2}}} = {\left( {\frac{{{x_2}}}{{{x_1}}}} \right)^3} = {\left( {\frac{{2x + 1}}{{x + 1}}} \right)^3} = 8:1$ , approximaetly.

Two points $A$ and $B$ are situated at a distance $x$ and $2x$ respectively from the nearer pole of a magnet $2\,cm$ long. The ratio of magnetic field at $A$ and $B$ is

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